Placer CountyPower Outage History
What this grade means
Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 4, 2024 | 119 hrs | 55,153 (29%) | Heavy Snow |
| Oct 9, 2019 | 4 hrs | 47,143 (25%) | Strong Wind |
| Oct 9, 2019 | 5 hrs | 46,564 (24%) | Strong Wind |
| Oct 9, 2019 | <1 hr | 46,361 (24%) | Strong Wind |
| Oct 9, 2019 | <1 hr | 43,131 (23%) | Strong Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Placer County, California that day.
Over the 10 years from 2016 to 2025, Placer County recorded 1,541 distinct power outage events, averaging 3.8 hours per event.
The single worst outage on record in Placer County started February 4, 2024 (Heavy Snow), lasting 119 hours and leaving up to 55,153 customers without power (29% of the county) at its peak.
October has historically been the worst month for outages in Placer County, with 213 events recorded during that month across the dataset.
Based on this history, Placer County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in California
Counties with the closest reliability grade and national percentile to Placer County.
| County | Grade | National percentile |
|---|---|---|
| Colusa County | D | 28th |
| Monterey County | D | 27th |
| Madera County | D | 27th |
| Glenn County | D | 32nd |
| San Mateo County | D | 32nd |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Placer County?
Between 2016 and 2025, Placer County recorded 1,541 outage events, averaging 3.8 hours each.
What is Placer County's reliability grade?
Placer County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Placer County?
The worst outage on record started February 4, 2024 (Heavy Snow), lasting 119 hours and affecting up to 55,153 customers.